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    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    NAD+ enhances ribitol and ribose rescue of α-dystroglycan functional glycosylation in human FKRP-mutant myotubes

    Carolina Ortiz-Cordero et al.
    The combined use of NAD+ with ribitol or ribose potentiates the rescue of α-dystroglycan functional glycosylation in FKRP-mutant patient-specific iPSC-derived myotubes, representing potential novel treatments for FKRP muscular dystrophies.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Dynamic Na+/H+ exchanger 1 (NHE1) – calmodulin complexes of varying stoichiometry and structure regulate Ca2+-dependent NHE1 activation

    Lise M Sjøgaard-Frich et al.
    NHE1-CaM complexes of multiple stoichiometries regulate cellular Ca2+-dependent NHE1 activity and can contribute to NHE1 dimerization, the latter shown by the NMR structure of CaM linking two NHE1 cytosolic tails.
    1. Microbiology and Infectious Disease

    A single regulator NrtR controls bacterial NAD+ homeostasis via its acetylation

    Rongsui Gao et al.
    Functional definition of NrtR and the discovery of its acetylation represents a first paradigm for linking protein acetylation to bacterial central NAD+ metabolism.
    1. Neuroscience

    Pro-death NMDA receptor signaling is promoted by the GluN2B C-terminus independently of Dapk1

    Jamie McQueen et al.
    Excitotoxicity driven by NMDA receptor hyper-activation does not involve DAPK1-dependent events in vitro or in vivo, and previously described DAPK1-NMDAR disrupting peptides act by blocking the NMDA receptor.
    1. Neuroscience

    Ring finger protein 10 is a novel synaptonuclear messenger encoding activation of NMDA receptors in hippocampus

    Margarita C Dinamarca et al.
    A protein called RNF10 relays messages from synapses to neuron cell nuclei, and is responsible for long-lasting modifications of dendritic spines as observed after activation of synaptic glutamate receptors.
    1. Neuroscience

    Physiological and pathophysiological control of synaptic GluN2B-NMDA receptors by the C-terminal domain of amyloid precursor protein

    Paula A Pousinha et al.
    The APP intracellular domain (AICD) physiologically regulates synaptic GluN2B-containing NMDA receptor current, a process that could contribute to pathological Alzheimer's disease-related synaptic failure upon increase of AICD levels in adult neurons.
    1. Neuroscience

    Presynaptic PTPσ regulates postsynaptic NMDA receptor function through direct adhesion-independent mechanisms

    Kyungdeok Kim et al.
    Presynaptic adhesion molecule PTPσ in the hippocampus regulates postsynaptic NMDA receptor function and behavioral novelty recognition through mechanisms independent of their trans-synaptic binding partners.
    1. Neuroscience

    Distinct roles of NMDA receptors at different stages of granule cell development in the adult brain

    Yangling Mu et al.
    NMDARs promote spine formation to control survival of adult-born granule cells, but gauge spine enlargement and recruitment of AMPARs in both developing and mature neurons.
    1. Neuroscience

    NMNAT1 inhibits axon degeneration via blockade of SARM1-mediated NAD+ depletion

    Yo Sasaki et al.
    Axonal metabolic flux analysis demonstrates that expression of NMNAT1 blocks axonal degeneration in cultured mouse neurons not by altering NAD+ synthesis, but rather by inhibiting injury-induced, SARM1-dependent NAD+ consumption.
    1. Biochemistry and Chemical Biology

    Instability in NAD+ metabolism leads to impaired cardiac mitochondrial function and communication

    Knut H Lauritzen et al.
    Transgenic mice and cell models provide evidence of a pathophysiological mechanism that connects mtDNA damage to cardiac dysfunction via reduced NAD+ levels and loss of mitochondrial function and communication.